Improvement in the mode of lubricating the wheels in tread-powers



gate-ut otitis.

STEPHEN D. ELY, OF MILLS'lONlL NEW JERSEY.

Lette'rs Patent No. 100,875, dated March 15,1870.

IMPROVEMENT IN TBE MODE OP LUBRICATING THE WHEELS IN TREAD-POWERS.

The Schedule referred to i'n these Letters Patent and making part of the same To all whomit may concern Be it known that I, STEPHEN D. ELY, of the township of Millstone, in the county of Monmouthfand State of New-Jersey, have invented certain new and useful Improvements in the Mode of Applying Grease to Wheels for Tread-Powersl and other machinery; and I do hereby declare that the followingis a'full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, which form a part 'of these specifications, in whichlFigure 1 represents a side view of my improvement. A

Figure 2 represents a longitudinal bisection.

My invention consists in forming a conical-shaped bore or cavity within the outer extremity or hub of a wheel, so that grease of any kind, either in a hard or liquid state, may be applied at the outer end of the hub through a small opening, and, thus applied, works itself inwardly to the shoulder and bearing oi' the axle.

This invention is applicable to tread-powers and other machinery where wheels are not required to be fastened to to the shaft or axle, the advantage being that it only requires one-third of' the grease commonly used, the power or machinery is greased in one-fifth of the usual time, and, when greased,continues so much longer.

To enable otbersskilled in the art to make use of my said invention, I will proceed to describe 4the same.

Similar' letters of reference where they occur denote like parts in all the drawings.

Letter A represents one of the wheels, turning on axle B.

' Letter O represents one of the ends of the axle, working in the journal.

Letter D represents the conieahshaped* cavity or bore, as shown in iig. 2.

Letter E represents the apertnreat theouter end of the hub, at which point the grease is applied.

ain iig. 1 represents the track on whichv the wheel runs, and Y b, the rail or guard which keeps the wheel on the shaft or axle. l I am aware that a patent was issued to David Oumming, of Pennsylvania, July 27, 1858, for a conicalshaped cavity or tapering hole in a box, when the said axle and box are arranged relatively to each other.

This I do not claim, because his patent only relates to.

revolving axles, the box being stationary. My device relates only to hubs and wheels 'turning upon an axle, the conical-shaped bore within thc hub'being used only as an automatic greaser, thus supplying grease only when necessary, the cavity thus retaining and carrying the grease, the end of the axle having a plane surface, and not fitting the cavity, as in Cummings patA ent.

Having thus fully described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

A conical bore, shaped in such a manner as to carry and supply grease in a hard or liquid state, inserted in the outer cen-ter of wheels in tread-power machines, as herein described.

STEPHEN D. ELY.

\Vituesses WILLIML GREEN, PETER M. KAFER. 

